I think it’s very good that Ellena’s Necklace support Spellbreakers but it also gives god mode to infiltrators, so -30% total damage for Aura of Censure would be nice block to prevent abuse, IMHO.
And how about Ungolia’s amulet? It seems that Spellbinders lack another vitality support. Diviner set is for aether reep spirit, vitality drain essence items have zero arcanist skills and there are no items for vitality AAR, PRM or Callidor.